HCO emission from H II-molecular cloud interface regions.

M. S. Schenewerk, L. E. Snyder, J. M. Hollis, P. R. Jewell, Lucy M Ziurys

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Abstract

A survey of well-known molecular clouds in the four strongest HCO NK-,K+ = 1(01)-0(00) hyperfine transitions has been carried out to determine the prevalence of HCO and to study its chemistry. HCO emission was observed in seven molecular clouds. Three of these, NGC 2264, W49, and NGC 7538, were not previously known sources of HCO. In addition, NGC 2024 and Sgr B2 were mapped and shown to have extensive HCO emission. The survey results show the HCO abundance to be enhanced in H II-molecular cloud interface regions and support a correlation between C+ and HCO emission. The strength of the HCO emission in NGC 2024 is interpreted in terms of this enhancement and the source structure and proximity to Earth.

Original languageEnglish (US)
Pages (from-to)785-796
Number of pages12
JournalAstrophysical Journal
Volume328
Issue number2
StatePublished - May 15 1988

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molecular clouds
proximity
chemistry
augmentation

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Schenewerk, M. S., Snyder, L. E., Hollis, J. M., Jewell, P. R., & Ziurys, L. M. (1988). HCO emission from H II-molecular cloud interface regions. Astrophysical Journal, 328(2), 785-796.

HCO emission from H II-molecular cloud interface regions. / Schenewerk, M. S.; Snyder, L. E.; Hollis, J. M.; Jewell, P. R.; Ziurys, Lucy M.

In: Astrophysical Journal, Vol. 328, No. 2, 15.05.1988, p. 785-796.

Research output: Contribution to journalArticle

Schenewerk, MS, Snyder, LE, Hollis, JM, Jewell, PR & Ziurys, LM 1988, 'HCO emission from H II-molecular cloud interface regions.', Astrophysical Journal, vol. 328, no. 2, pp. 785-796.
Schenewerk MS, Snyder LE, Hollis JM, Jewell PR, Ziurys LM. HCO emission from H II-molecular cloud interface regions. Astrophysical Journal. 1988 May 15;328(2):785-796.
Schenewerk, M. S. ; Snyder, L. E. ; Hollis, J. M. ; Jewell, P. R. ; Ziurys, Lucy M. / HCO emission from H II-molecular cloud interface regions. In: Astrophysical Journal. 1988 ; Vol. 328, No. 2. pp. 785-796.
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